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<?php
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/**
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* @file
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* Common functions used by several of the print modules.
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*
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* @ingroup print
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*/
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/**
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* Auxiliary function to scan all module directories for a given library.
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*
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* @param string $lib
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* The machine name of a library to return the path for.
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* @param string $mask
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* The preg_match() regular expression of the files to find.
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*
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* @return array
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* An array of the filenames matching the provided mask.
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*/
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function _print_scan_libs($lib, $mask) {
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$tools = array_keys(file_scan_directory(drupal_get_path('module', 'print'), $mask));
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$tools = array_merge($tools, array_keys(file_scan_directory(PRINT_LIB_PATH, $mask)));
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if (module_exists('libraries')) {
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$tools = array_merge($tools, array_keys(file_scan_directory(libraries_get_path($lib), $mask)));
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}
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return array_unique($tools);
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}
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/**
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* Callback function for the preg_replace_callback replacing spaces with %20.
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*
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* Replace spaces in URLs with %20
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*
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* @param array $matches
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* Array with the matched tag patterns, usually <a...>+text+</a>.
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*
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* @return string
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* tag with re-written URL
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*/
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function _print_replace_spaces($matches) {
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// Split the html into the different tag attributes.
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$pattern = '!\s*(\w+\s*=\s*"(?:\\\"|[^"])*")\s*|\s*(\w+\s*=\s*\'(?:\\\\\'|[^\'])*\')\s*|\s*(\w+\s*=\s*\w+)\s*|\s+!';
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$attribs = preg_split($pattern, $matches[1], -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
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foreach ($attribs as $key => $value) {
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$attribs[$key] = preg_replace('!(\w)\s*=\s*(.*)!', '$1=$2', $value);
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}
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$size = count($attribs);
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for ($i = 1; $i < $size; $i++) {
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// If the attribute is href or src, we need to rewrite the URL in the value.
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if (preg_match('!^(?:href|src)\s*?=(.*)!i', $attribs[$i], $urls) > 0) {
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$url = trim($urls[1], " \t\n\r\0\x0B\"'");
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$new_url = str_replace(' ', '%20', $url);
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$matches[1] = str_replace($url, $new_url, $matches[1]);
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}
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}
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$ret = '<' . $matches[1] . '>';
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if (count($matches) == 4) {
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$ret .= $matches[2] . $matches[3];
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}
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return $ret;
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}
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/**
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* Convert image paths to the file:// protocol.
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*
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* In some Drupal setups, the use of the 'private' filesystem or Apache's
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* configuration prevent access to the images of the page. This function
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* tries to circumnvent those problems by accessing files in the local
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* filesystem.
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*
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* @param string $html
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* Contents of the post-processed template already with the node data.
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* @param bool $images_via_file
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* If TRUE, convert also files in the 'public' filesystem to local paths.
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*
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* @return string
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* converted file names
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*/
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function _print_access_images_via_file($html, $images_via_file) {
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global $base_url, $language;
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$lang = (function_exists('language_negotiation_get_any') && language_negotiation_get_any('locale-url')) ? $language->language : '';
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// Always convert private to local paths.
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$pattern = "!(<img\s[^>]*?src\s*?=\s*?['\"]?)${base_url}/(?:(?:index.php)?\?q=)?(?:${lang}/)?system/files/([^>\?]*)(?:\?itok=[a-zA-Z0-9\-_]{8})?([^>]*?>)!is";
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$replacement = '$1file://' . realpath(variable_get('file_private_path', '')) . '/$2$3';
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$html = preg_replace($pattern, $replacement, $html);
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if ($images_via_file) {
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$pattern = "!(<img\s[^>]*?src\s*?=\s*?['\"]?)${base_url}/(?:(?:index.php)?\?q=)?(?:${lang}/)?([^>\?]*)(?:\?itok=[a-zA-Z0-9\-_]{8})?([^>]*?>)!is";
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$replacement = '$1file://' . DRUPAL_ROOT . '/$2$3';
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$html = preg_replace($pattern, $replacement, $html);
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}
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return $html;
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}
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